206434831201 has 3 divisors (see below), whose sum is σ = 206435285553. Its totient is φ = 206434376850.

The previous prime is 206434831199. The next prime is 206434831237. The reversal of 206434831201 is 102138434602.

The square root of 206434831201 is 454351.

It is a perfect power (a square), and thus also a powerful number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is not a de Polignac number, because 206434831201 - 2¹ = 206434831199 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (206434831271) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 227176 + ... + 681526.

It is an arithmetic number, because the mean of its divisors is an integer number (68811761851).

Almost surely, 2^206434831201 is an apocalyptic number.

206434831201 is the 454351-st square number.

206434831201 is the 227176-th centered octagonal number.

It is an amenable number.

206434831201 is a deficient number, since it is larger than the sum of its proper divisors (454352).

206434831201 is an frugal number, since it uses more digits than its factorization.

206434831201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 908702 (or 454351 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 34.

The spelling of 206434831201 in words is "two hundred six billion, four hundred thirty-four million, eight hundred thirty-one thousand, two hundred one".